A data structure is a specialized format for organizing and storing data. General data structure types include the array, the file, the record, the table, the tree, and so on. Any data structure is designed to organize data to suit a specific purpose so that it can be accessed and worked with in appropriate ways.
A data structure is a collection of data items stored in memory, in addition a number of operations are provided by the software to manipulate that data structure.
Data Structure is a way of collecting and organising data in such a way that we can perform operations on these data in an effective way.